澳矿含量对非焦煤含铁型焦气化反应温度的影响  

Influence of Australian Mine Powder Content on the Starting Temperature of Gasification Reaction of the Carbon Iron Composite

作　　者：石恭俭 原春阳[1] 刘建国[1] 张龙龙[1] 王社斌[1] 

机构地区：[1]太原理工大学材料科学与工程学院,新材料界面科学与工程教育部重点实验室,太原030024 [2]山西省冶金设计院,太原030001

出　　处：《太原理工大学学报》2013年第4期444-451,共8页Journal of Taiyuan University of Technology

基　　金：国家自然科学基金资助项目(51101110)

摘　　要：为降低高炉CO2排放,研制新型焦炭并扩大高炉用煤的适用范围,本研究以神府非焦煤和澳矿粉为原料,经破碎、筛分、混合、热压成型,焦化后制备出不同澳矿粉含量的CIC(含铁型焦)试样。用OM、X射线衍射仪和热重分析仪测定CIC焦化前、后的结果,分析了澳矿含量对CIC微观组织和气化反应起始温度的影响。结果表明,热压成型后煤粉和澳矿粉紧密接合,焦化后CIC中出现Fe3O4、FeO和Fe等相;Fe原子的数量随澳矿粉含量的增加而增加;CIC气化起始温度从787.5℃降低到665.3℃,这是因为Fe的催化作用降低了碳气化反应活化能。利用该CIC可降低焦比,并把高炉蓄热带(700～900℃)的CO2浓度降低34%左右。In order to reduce CO2 emissions and expand the scope of the blast furnace coal, new types of cokes were developed. In this study, Shenfu non-coking coal and Australian Mine Powder（AMP） were chosen as the raw materials. The CIC（Carbon Iron Composite） samples with different content of AMP were prepared by crushing, screening, mixing, hot-press forming and coking. Results before and after coking were determined by OM, X-ray diffraction and ther- mal gravimetric analysis. Influence of AMP content on the change of microstructure and the starting temperature of gasification reaction was investigated. The results show that, pulverized coal and AMP closely engaged after hot-press forming, Fe3O4, FeO and Fe were found after co- king in CIC. The amount number of Fe atoms increased with the increasing content of AMP, the starting temperature of gasification was dropped from 787.5℃ to 665.3 ℃, which because the ca- talysis of Fe reduced activation energy of carbon gasification reaction. The CIC reduced coke rate, and also reduced CO2 concentration by about 34% in lumpish zone.

关 键 词：澳矿粉 非焦煤含铁型焦 焦化 气化反应起始温度 减少高炉CO2排放 

分 类 号：TF526.1[冶金工程—钢铁冶金] TQ522.1[化学工程—煤化学工程]